[Plugin: Faster Image Insert] Size of FII box

try to answer all of your questions within one reply:

1. no, I don’t think the size of metabox is adjustable, at least not horizontally.
2. the unique link feature should be doable, wait till I find the time.
3. no, image inserts at the cursor position, what plugin are you using ?
4. you should look into wordpress shortcode if you want a gallery with different behaviour.

please put all your requests in one thread next time, cheers.